Very simple, mix your vinegar and water. Pour 75% vinegar and 25% water and shake well.
Flip over all of your glass and spray them with the mixture, then while wet, apply a thin coat of spray paint - then immediately spray over the paint with your mixture again - then another light coat of paint and allow to dry. Use a scrunched up paper towel to catch any drips. You'll see the paint and the vinegar mixture separate.